SU723191A1 - Method of non-ramming hydraulic conveying of mined rock - Google Patents

Description

I

The invention relates to the field of mining industry and can be used for hydraulic transportation of rock mass in the development of coal deposits by mechano-hydraulic method.

There is a method of free-flow hydraulic transportation of rocks through chutes when the flow of fluid through pipelines 1 is supplied to them.

 There is also known a method of uncontrolled hydraulic transport of rock mass, including transportation of rock mass through lava troughs, storage and baseline drift troughs, delivery of rock mass and water to the hydraulic lift chamber sump, supplying water through pipelines and releasing it to the mate of lava with a ventilation tunnel. This angle of lava troughs take more than the angle of inclination of the accumulating and main drifts {2J.

A disadvantage of the known methods is the low efficiency of the hydraulic transport of the rock and the difficult working conditions in the lava.

The purpose of the invention is to improve s (| the efficiency of hydrotransport and improve the working conditions in the lava by separate formation of transporting flows in the lava and accumulating

shtreke.

This is achieved by the fact that, in a known method, free-flow hydraulic is transported by rock mass in a complex-mechanized lava water is supplied from the pipeline separately, and the minimum amount of water for hydraulic transportation of rock mass is supplied to the main chutes adjoining the lava with a ventilation drift and the remaining amount of water is fed to the interface of the longitudinal gutters with the gutters of the accumulating drift.

Claims (2)

FIG. 1 shows the equipment of complex-mechanized lava with hydrotransport of the rock mass in the plane of the reservoir; in fig. 2 is a cross-section of the rounded interface of the longitudinal grooves with the grooves of the accumulating drift, section A-A in FIG. I; in fig. 3 equipment of complex mechanized lava, axonometrics. 37 The equipment of the complex-mechanized lava contains a hydraulic fastening latch 1, becoming lateral grooves 2, laid on the linear sections of the bending lateral conveyor, combine 3. nozzles 4, through which water is fed to the lateral troughs, rounding the junction 5, connecting the lateral troughs with gutters accumulating drift. The nozzle 6 serves to supply water for a rounded end of the main chutes with accumulator gutters. Through the water line 7, laid along the accumulating drift, the necessary water flow is supplied. The equipment also contains a valve 8, a flexible pipe 9, chutes 10 of the accumulating drift and a valve 11. The non-pressure hydraulic transportation of the rock is carried out as follows. Combine 3 discourages and loads mountain mass. on the becoming of the gutters 2. One stream with the minimum amount of water is supplied through the conduit 7 and the flexible pipeline 9 through the nozzles 4 pp of the lav-out gutters. Nozzle 4 and the flat jet flowing out of it without. blows affect the walls and the plate, the gutter, and the hearth, washed out with water, forms a uniformly moving pulp along the gutters of the lava. The pulp, reaching the conjugation 5, on the rounded section loses the speed of the engine, due to this it quickly accumulates. Splashing it over the side of the grooves prevents the fencing off of the rounded mate (Fig. 2 and 3), and the remaining amount of water through the entire width of the bottom of the groove is reported by the remaining 1 / additional required speed through the nozzle 6 with water outlet in the form of a stream. This ensures a uniform movement of the pulp along the lava troughs in the trough of accumulating drift and the silting of the lining sections and the bottom of the lava is eliminated. In addition, depending on the angle of inclination of the lava and the productivity of the combine, the amount of water supply in separate streams is regulated. With the valve 8 open and valve 11 closed, the entire amount of water is fed through the nozzle 6 to the rounded junction of the lava to the grooves of the accumulating drift. In the case of breaking and loading with a mining combine, the valve 8 is covered by the bulk gutters, and the valve 11 is opened, the required amount of water begins to flow to the main chutes through the nozzles 4. And with the valve -8 closed and the valve 11 open, all the water can; arrive at the main gutters. The valves are controlled remotely from the control panel of the combine or manually. This adjustment provides a quick choice of the mode of supplying the required amount of water along divided streams and the necessary pulp flow-forming through the lava troughs into the trough of the accumulating track. The proposed method of free-flow hydraulic transportation of the rock mass makes it possible to increase the efficiency of hydrotransport and to improve the working conditions in the lava. The invention of the method of free-flow hydraulic transportation of rock mass, for example, in complex-mechanized lava, including the transportation of rock mass through the troughs, lava, storage and main drip troughs, the flow of rock and water into the sump of the hydraulic lift chamber, the water supply through pipelines and its release to Lava mating with a vent drift, while the slope angle of the lava grooves takes more than the slope angle of the accumulative and main drift grooves, characterized in that in order to increase the effect efficiency of hydrotransport and improvement of working conditions in the lava by separate formation of transporting streams in the lava and accumulating drift, water from the pipeline is supplied separately, and the minimum allowable amount of water for hydraulic transportation of the rock mass is supplied to the laval chutes, and The remaining amount of water is fed to the interface of the long gutters with the gutters of the accumulating drift. Sources of information, 1f} are listed in the examination. 1. USSR author's certificate No. 253725, cl. E 21 F 17/08, 1969. 2. Smoldyrev A.E. Pipeline transport in the mining industry. M., 1959, p. 39-66 (prototype). vvv W 10 10 .t F (g.Z.